%0 Journal Article
%A J. Popken
%T An Arithmetical Theorem Concerning Linear Differential - Difference Equations
%J Publications de l'Institut Mathématique
%D 1952
%P 121 
%V _S_S_IV
%N 04
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PIM_1952_S_S_IV_04_a12/
%F PIM_1952_S_S_IV_04_a12